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Charra [1.4K]
3 years ago
10

Solve the system of equations by using the substitution method X+Y=3 X=2Y

Mathematics
1 answer:
Marrrta [24]3 years ago
6 0

Answer:

If you're asking me to solve for Y, y = 1.

Step-by-step explanation:

Simple. If x is 2x y and y = 1, 2 x 1 is 2 plus y being equal to 1 will give you a total of 3. Hope this helped.

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The LCD of 2/5, 3/2, and 1/2 is
soldier1979 [14.2K]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Find z if X=27, μ=20, and α=3.4. Round to the nearest hundredth if necessary.
Scrat [10]

Answer:

A. Z=2.06

Step-by-step explanation:

We want to find the Z-score of X=27 if the population mean is \mu=20,and the population standard deviation is \sigma=3.4.

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Z=\frac{X-\mu}{\sigma}

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7 0
3 years ago
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mr Goodwill [35]
To get the Greates Common Factor (GCF) of 84 and 210 we need to factor each value first and then we choose all the copies of factors and multiply them: 

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<span>The Greates Common Factor (GCF) is:   2 x 3 x 7 = 42</span>

3 0
3 years ago
Read 2 more answers
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Answer:

c

Step-by-step explanation:

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7 0
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